Stack set



FIG. 1 is a top perspective view of the stack set showing my new design.

FIG. 2 is a bottom perspective view thereof.

FIG. 3 is a side view thereof.

FIG. 4 is another side view thereof.

FIG. 5 is a top view thereof.

FIG. 6 is a bottom view thereof.

FIG. 7 is a top perspective exploded view thereof.

FIG. 8 is a bottom perspective exploded view thereof.

FIG. 9 is a side exploded view thereof; and,

FIG. 10 is another side exploded view thereof.

The broken lines in the drawings illustrate portions of the stack set which form no part of the claimed design. 

CLAIM The ornamental design for a stack set, as shown and described. 